The 7 Best Swimsuits for Lap Swimming in 2024, Expertly Reviewed
January 22, 2024
Swimmers understand that the only thing better than clocking a new personal best time or that gold medal finish is a swim training suit that fits like a dream. (Well, close second.)
For women looking to dominate the pool, whether that’s hitting a new personal best time, making Nationals for the first time, or getting in killer shape, the right lap swimming swimsuit is crucial.
Unlike more casual swimwear for women and even many types of athletic swimwear, lap swimming swimsuits are designed to maximize performance in training.
This means that they are comfortable and durable, promote a full range of movement, and are built with high-performance, streamlined fabrics that reduce drag and maximize speed.
But where to start with a new practice suit?
That's where this guide comes in.
We'll provide expert recommendations for the best swimsuits for swim training and cover everything you need to know about selecting the perfect swimsuit, including different suit types, fabrics, and how to make your new training swimsuit last.
By the end, you will be able to dive into the pool with confidence, knowing that your swimsuit will work just as hard as you do.
Our Favorites
- Best overall training swimsuit - Speedo Solid Endurance Flyback Training One Piece
- Best lap swimming swimsuit for extra support - TYR Durafast Elite
- Best adjustable swim training swimsuit - JOLYN Jackson 4 One-Piece Swimsuit
- Best practice swimsuit for vibrant prints and patterns - Dolphin Uglies String Back One-Piece Swimsuit
- Best two-piece lap swimming swimsuit - TYR Durafast One DiamondBack Two-Piece Swimsuit
- Best practice swimming swimsuit for women with wider shoulders - TYR TrinityBack One-Piece Swimsuit
- Best budget-friendly training swimsuit - Sporti Essential Thin Strap One-Piece
The Best Swimsuits for Lap Swimming
Next, we will examine each swimsuit individually, evaluating its fabric composition, comfort, fit, and performance in the pool.
Speedo Solid Endurance+ Flyback Training One Piece
Best practice suits for swimmers looking for maximum durability
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According to reviews and assessments from women who have used this swimsuit in swim training, here's how they grade the TYR Durafast Elite Maxfit One-Piece:
- Durability: 5/5
- Comfort and Fit: 5/5
- Hydrodynamics: 4.5/5
- Size and Color options: /5
- Price: $$$
Speedo is the leading brand in the pool when it comes to swim gear and apparel. It makes lane-leading swim goggles, racing goggles, and competition swimsuits.
The Speedo Solid Endurance+ Flyback follows their long, golden in the water with an incredibly durable swimsuit designed for fast swimming in training.
Made for maximum durability and comfort during swim training, it checks all the boxes when choosing a long-lasting and fast swimsuit.
Thin, spaghetti straps allow you to perform overhead movements—i.e., all four strokes, and a great streamline—with zero restriction. The flyback back strap design supports the upper body when swimming, evenly distributing tension and reducing chafing.
And the Speedo Endurance+’s fabric composition is as long-lasting as it gets; the swimsuit is made with 50% polyester and 50% PBT (a polyester variant) that doesn’t stretch and fade when exposed to chlorine repeatedly from swim training.
Speedo is well-known for crafting swimsuits that retain shape and color over extended bouts of swim training in chlorinated pools (chlorine is the chief culprit when it comes to swimsuit fabrics stretching and fading), and the Endurance+ is their most durable training swimsuit for women.
The best feature of this swimsuit—the maximum durability and long-lasting fabric composition—is also its biggest drawback.
Polyester is great at resisting damage from chlorine and UV rays, but it’s also not as flexible compared to other swimsuit fabrics (like Elastane or Spandex). This means that women who fall between sizes may find it difficult to get that perfect fit.
TYR Durafast Elite Maxfit One Piece Swimsuit
Best for swimmers looking for excellent support when swimming
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According to reviews and assessments from women who have used this swimsuit in swim training, here's how they grade the TYR Durafast Elite Maxfit One-Piece:
- Durability: 5/5
- Comfort and Fit: 5/5
- Hydrodynamics: 4.5/5
- Size and Color options: /5
- Price: $$$
Made for maximum support and increased coverage, the TYR Durafast Elite Solid Maxfit One-Piece Swimsuit is an excellent training swimsuit for women with a larger bust and swimmers who struggle to stay comfortable when lap swimming.
The Maxfit is made of 94% polyester and 6% Spandex, which gives the swimsuit tons of durability—polyester is an absolute pro for long-lasting wear in chlorinated swimming pools—and a little bit of stretch for that snug and comfortable fit.
Shoulder straps on the TYR Maxfit are thicker, which might chafe some swimmers, and lead into a racerback design on the backside of the suit for a full range of motion.
The combination of wider shoulder straps (added stability of the swimsuit) and racerback design (increased range of motion) combine to provide excellent support and keep everything in place while you churn up and down the pool.
TYR offers the suit in a wide range of sizes, from size 22 to 40, making it an excellent choice for hard-to-size swimmers.
Made to last, with UPF 50+ sun protection to reduce UV exposure, and balancing the durability of polyester with the comfort and flex of Spandex, the TYR Durafast is the best option for women who want added support while doing swim training.
Dolfin Uglies String Back One Piece
Best for swimmers looking to make a splash in the pool and visually
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Feedback and evaluations from the lap pool from women who trained in this swimsuit rate the Dolfin Uglies String Back One-Piece:
- Durability: 4/5
- Comfort and Fit: 5/5
- Hydrodynamics: 5/5
- Size and Color options: 4/5
- Price: $
Despite the name, Dolfin Uglies are lap swimming swimsuits that are actually quite aesthetically pleasing. They come in a variety of bright and playful solid colors and vibrant patterns to give your swimwear a visual splash while also helping you swim fast and comfortably.
Uglies feature a minimalistic design, which allows swimmers to perform all the major strokes without worrying about the swimsuit chafing or getting in the way. The suits are fully lined for privacy.
In terms of fabric composition, Uglies are made with 91% polyester and 9% spandex, which encourages more flex and better comfort. Spandex is also extremely water-repellant, meaning that this is one of the “fastest” swimsuits in the training pool.
The higher spandex count in the swimsuit fabric does mean you can expect a reduction in swimsuit longevity.
Women who wear Dolfin Uglies in the pool praise the swimsuits for their vibrant color patterns, comfort, and performance. Additionally, the price is attractive, with Uglies being budget-friendly at around $40.
JOLYN Jackson 4 Solid One Piece Swimsuit
Best for women who want an adjustable lap swimming swimsuit
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Here’s how the JOLYN Jackson 4 Solid One-Piece performs in the pool during lap swimming and training, according to reviews from women:
- Durability: 5/5
- Comfort and Fit: 5/5
- Hydrodynamics: 4.5/5
- Size and Color options: 4/5
- Price: $$$
JOLYN swimsuits have become popular with competitive and recreational swimmers thanks to their innovative designs, vibrant colors, and commitment to sustainability.
The JOLYN Jackson 4 Solid One-Piece Swimsuit is a shining example of this, with tons of bright color options, 100% polyester construction for maximum durability, and adjustable straps at the back for that custom fit.
The Jackson 4 is fully lined and has a slightly rounded neckline to prevent water from flooding the swimsuit when pushing off or diving into the water. The shoulder straps are thin and ideal for promoting full-range movement when swimming so that you can focus on technique and effort instead of being restricted by your swimsuit.
But what really sets the Jackson 4 apart from other training swimsuits for women are the adjustable tie straps at the back.
The adjustable ties are a game changer for women who struggle to get that perfect swimsuit fit with traditionally sized swimwear.
The Jackson 4’s tie straps allow women to fasten the swimsuit more securely when the occasion calls for it (i.e. swim practice) or a little looser when chilling by the pool catching some sunshine.
JOLYN offers the suit in over a dozen solid colors, and size options range from 22-38.
When comparing different swimsuits for lap swimming, the JOLYN Jackson 4 is at the higher end of the price spectrum, but for women who love the adjustable nature of the swimsuit, worth the added cost.
TYR Women’s Lapped Trinityfit One-Piece Swimsuit
Best lap swimming swimsuit for women with wider shoulders
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Based on the feedback from women who swam with the TYR Lapped Trinityfit One-Piece Swimsuit, here’s how the suit performs:
- Durability: 5/5
- Comfort and Fit: 4.5/5
- Hydrodynamics: 5/5
- Size and Color options: 4/5
- Price: $$$
The TYR Women’s Lapped Trinityfit One-Piece Swimsuit is designed for durability, comfort, and a full range of movement when swimming.
The thin spaghetti straps allow swimmers to move their shoulders and arms freely, regardless of their favorite stroke or distance.
The swimsuit is fully lined and features 94% long-lasting polyester and 6% spandex. TYR rates it as being able to withstand 300+ hours of swim training in the pool without stretching or fading.
The TYR Lapped TrinityFit has a very unique back strap design called the “Triple Bound X-Back,” which combines the standard X-strap on the upper back with a horizontal tri-strap design on the mid back.
This allows for a superior range of motion for women with broader shoulders, which most experienced swimmers possess thanks to the endless hours logged in the pool. The tension from the straps supports the upper body while training and lap swimming.
TYR retails the suit for around $60, which is at the pricier end of the spectrum. The high cut does leave some women reporting reduced bottom coverage when swimming.
TYR Solid Durafast One Diamondback Workout Bikini Set
Best two-piece lap swimming swimsuit for women
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Feedback and reviews of the TYR Solid Durafast One Diamond Workout Swimsuit rate it for:
- Durability: 5/5
- Comfort and Fit: 5/5
- Hydrodynamics: 4/5
- Size and Color options: 3/5
- Price: $$$
The TYR Durafast One Diamondback Two-Piece Swimsuit is our top pick for swimmers looking for a fast, durable, and customizable two-piece swimsuit for training and lap swimming.
The swimsuit is made of 100% polyester, which is as chlorine-resistant as lap swimming suits get. The two-piece design allows swimmers to choose from differently-sized pieces for a truly customized fit. The two-piece design is also a hit with pregnant women, as the suit can fit around a growing belly.
Two-piece swimsuits for lap swimming are not as common as one-piece swimsuits, as the two-piece design *can* be less secure and streamlined with increased openings. One-piece swimsuits also provide better coverage and support.
But swimmers looking for a custom fit, less coverage, and the increased mobility and freedom of movement of a two-piece swimsuit will love the TYR Durafast One Diamondback. Women looking for an “under” when using a wetsuit will also love the versatility of this suit, making it one of the top triathlon swim suits in the water.
It comes in a wide range of sizes, from XXS to XL, and just two solid colors, which is a bummer for swimmers looking for a little more visual flavor with their training swimsuit.
TYR retails the swimsuit for around $60, which is more expensive than a regular one-piece swimsuit for laps, but the customized fit, long-lasting fabric, and versatility of the swimsuit make it a great option for swim training.
Sporti Essential Solid Thin Strap One-Piece Swimsuit
Best budget-friendly lap swimming swimsuit
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Swimmers who have used the Sporti Essential Thin Strap One-Piece Swimsuit rate it:
- Durability: 4.5/5
- Comfort and Fit: 5/5
- Hydrodynamics: 5/5
- Size and Color options: 4/5
- Price: $
Sporti is a budget-friendly swim brand that offers goggles, caps, swimwear, and more for competitive and recreational swimmers at lower prices than brands such as Speedo and TYR.
The Sporti Essential Solid Thin Strap One-Piece is a perfect example of this, with a durable construction, V-strap back for support and mobility, and the most size options of any of the practice suits on this list. And, of course, the price, which is less than $30.
The suit's fabric composition is 82% polyester and 18% spandex (and the lining is 100% polyester), which makes it exceptionally comfortable, form-fitting, and flat-out fast in the pool.
One of the most important factors of having a swimsuit for training is snugness and hydrodynamics; the Sporti Essential delivers both in droves.
This fabric composition is one of the most comfortable I’ve ever experienced in a swimsuit. 100% polyester swimsuits can often feel stiff and unpliable.
The Sporti Essential balances polyester's durability with spandex's comfort and flex for a superior fit and performance in the water.
Understanding Lap Swimming Needs
The right swimwear for training and lap swimming is important not only for comfort but also for performance.
A swimsuit is essentially your second skin in the water, so swimmers should look for a snug, hydrodynamic suit that promotes full range of movement.
Here’s a detailed breakdown of everything you need to know about women’s swimwear for swim training and laps.
Importance of Proper Swimwear
The importance of choosing the proper swimwear for training and lap swimming is crucial for several reasons, including:
- Faster swimming -- Training swimwear offers a streamlined fit that reduces drag in the water, allowing for faster and smoother swimming. The swimsuit increases swim speed by using hydrodynamic fabrics.
- Comfort – Swimsuits allow you to swim in comfort with a snug fit that moves with the body, reducing or eliminating chafing and irritation during long swim workouts.
- Support – The right swimsuit is also supportive, whether that means swimmers with larger busts, keeping everything in place while doing laps or reducing the risk of wardrobe malfunctions.
- Durability – Swimsuits for lap swimming are designed to last in the water, with chlorine-resistant fabrics that reduce stretching and thinning.
- Confidence – Proper swimwear boosts confidence. Knowing your swimsuit will go the distance with you allows you to focus on technique and performance.
Key Features of Lap Swimwear
When sorting through the various options online for practice suits, here are the most important features to look for:
Fabric composition
The fabrics used in the swimsuit largely determine how fast, comfortable, and durable it will be in the pool.
Swimsuits made with a blend of polyester and elastane (also referred to as Spandex or Lycra) offer the best in durability, comfort, and hydrodynamics.
Suits made of 100% polyester offer the longest shelf life possible but are slightly “stiffer” compared to swimsuits with elastane or Spandex.
Neckline
Lap swimming swimsuits have a medium to high neckline to reduce water flooding the suit when swimming.
Medium to higher necklines also provide better support and suit security, keeping it in place when thundering up and down the pool.
Leg cut
Leg cut is crucial as swimmers need hip range of motion to kick, turn, and dive when in the water. A higher leg cut is generally favored as it facilitates a more powerful kick and reduces fabric coverage for less drag in the pool.
Swimsuit type
One-piece swimsuits are by far the most common type of swimsuit for lap swimming. They provide the best coverage and support and, when designed for swim training, lead the pack when it comes to staying in place.
Two-piece swimsuits for swimming are less common but are a great option for pregnant women and as an under for wetsuits.
Back design
The design of the back of the swimsuit plays a role in providing support and freedom of movement.
Racerback and cross-back designs are the most popular choices as they distribute tension evenly across the back and shoulders, particularly beneficial for swimmers performing seemingly endless overhead arm movements.
Strap thickness
The shoulder straps are another key feature of lap swimming swimwear.
Thin shoulder straps promote more range of motion, while thicker straps promote increased support.
We will examine both types in depth later in this guide.
Types of Lap Swimming Swimsuits
Here is an overview of the different types of swimsuits designed for swim training for women:
One-piece swimsuits.
One-piece swimsuits are the most common type of swimwear for lap swimming. They are made with hydrodynamic fabrics and have a sleek cut for maximum speed in the water.
One-piece swimsuits come in a wide variety of cuts, strap types, and back designs and are often lined for added durability and comfort.
Two-piece swimsuits.
Two-piece swimsuits, also known as workout bikinis or tankinis, allow women to choose differently sized tops and bottoms for a custom fit.
They are a great option for women who swim outdoors and want to soak up the sun and can be used as a base layer under a wetsuit when open water swimming (in a triathlon, for example).
Tech suits.
Tech suits, or technical swimsuits, are high-performance swimwear made for competitive swimmers. They are paneled and specifically sized smaller to promote compression and a very snug fit.
Tech suits use a higher amount of Lycra or spandex, which stretches and fades quickly, making them less suitable for extended swim training.
They are also significantly more expensive than standard swimsuits for lap swimming, making them an uneconomic choice for swim workouts.
Strap and Back Styles
Finding a strap and back design that works best for you is an important consideration when choosing the perfect lap swimming swimsuit for women.
Here is an overview of the different back types with swimsuits for laps:
Racerback
The racerback is the classic “V” or “Y” back design. It is popular among lap swimmers as it allows for a wide range of shoulder, arm, and back movement, ideal for competitive swim training.
Racerback swimsuits provide excellent support and reduce the likelihood of strap slippage when swimming.
PROS | CONS |
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Secure and comfortable fit. The straps meet at the back, between the shoulder blades, providing a secure fit while swimming. | Fit specificity. The snugness required for this back design and swim training swimsuits means it may not fit all body types equally well. |
Range of motion. Compared to other types of swimwear, a racerback design allows for a full range of motion, which is essential for effective swim strokes. | |
Support. Racerbacks are also a great choice for swimmers looking for support in the upper back and shoulders. |
Cross-back
Cross-back swimsuits use an “X” back design that smartly distributes support and tension across the back.
Like the racerback, the crisscross straps help swimmers maintain freedom of movement when cruising up and down the pool. This back design is also effective at keeping shoulder straps in place
PROS | CONS |
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Even pressure distribution. Crisscross straps help spread out pressure and tension, providing balanced support. | Can be more complex to put on and off compared to simpler back strap designs. |
Secure fit. Similar to a racerback, cross-back swimsuits fit securely, reducing strap slippage. | |
Looks great. Swimmers often prefer this design for its aesthetic appeal. As they say: Look good, feel good. |
Tie-back
Swimsuits with a tie-back design feature adjustable backs for a custom fit each time you hit the water.
Tie-backs are also a great option for multi-purpose swimsuits; the swimsuit can be tightened accordingly for swim training and then a little looser and more comfortably when lounging by the pool.
PROS | CONS |
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Customizable fit. Perfect back strap design for swimmers who find themselves stuck between sizes and need a little added security or snugness. | Fewer options. There are fewer options for adjustable swim training swimsuits compared to racerback and cross-back designs. |
Adjustable support. The amount of support can be changed according to your needs in the water. | Potential for loosening. Like all ties, there is the potential of coming loose during vigorous swim training, requiring readjustment. |
Versatility. Adjustable swimsuits are a great option for women looking for a daily driver training swimsuit and something that can be worn at the beach or poolside. |
When it comes to swimsuit shoulder straps, there are two main types to look out for:
Wide straps
Wide shoulder straps provide maximum support and comfort for swimmers, including bustier women.
The larger strap design distributes pressure more evenly across the shoulders and is less likely to dig into them, causing discomfort.
PROS | CONS |
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Support. The big pro for wide straps is the increased support. Wider straps distribute tensions and support more evenly across the shoulders and back. Ideal for women with larger busts. | Can be more restrictive compared to thin straps, potentially limiting shoulder and arm movement. |
Comfort. Wider straps are less likely to dig into the skin when swimming, reducing chafing and irritation. | |
Stable fit. Training suits with wide straps provide a more stable and secure fit when swimming, giving women peace of mind when sprinting, doing flip turns, and chasing new best times in the water. |
Thin straps
Thin-strap swimsuits, also known as “spaghetti” straps, are minimalistic in design and offer less coverage than regular or wide straps.
This type of strap design is perfect for swimmers with smaller busts, slimmer women, and swimmers who prioritize movement over support.
PROS | CONS |
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Freedom of movement. Swimsuits with thin straps offer the highest range of movement, important when training so that you can swim and streamline without being impeded. | Not as durable. The thinner straps wear out faster compared to thick straps due to the narrower surface area. |
Less restrictive. Often feel less restrictive and lighter on the shoulders, which can improve comfort when swimming. | Less support. Women seeking more support will find that thin straps are insufficient for larger busts or those needing additional upper body support. |
Sleek design. Thin strap swimsuits offer a sleek and stylish look, which some swimmers may prefer. |
Material and Fabric Technology
The right swimsuit can make or break your swim workout. An ill-fitting, uncomfortable swimsuit causes chafing, rides up, and otherwise causes you to focus on readjusting instead of focusing on swim technique.
Understanding the different types of material and fabric in lap swimming swimsuits can help you choose the right one more effectively.
Here are the key materials and fabrics to look for:
Polyester
Polyester is the most durable fabric for swimsuits. It resists stretching, color fading, and thinning when exposed to pool chemicals like chlorine and UV exposure, which can both degrade swimsuits, shortening their lifespan.
Swimsuits made of 100% polyester are hands-down the most durable in the pool. Polyester’s durability comes with a slight cost, however; it’s stiffer than other swimsuit fabrics, which we will examine shortly.
Even though polyester is fast-drying compared to fabrics such as cotton, among the swimsuit fabrics, it absorbs the most water and, by extension, dries slowest.
Elastane
Elastane, or Spandex or Lycra, is a stretchy, water-repellant fabric that helps swimmers get snug into their swimsuit, attaining a comfortable and secure fit.
Elastane is very fast-drying and hydrodynamic, so it makes up a significant portion of racing swimsuit construction. However, it is a fragile fabric that can more easily rip and fade compared to polyester.
For swimmers who prioritize stretch in their swimsuits, look for a training swimsuit that has between 5-10% elastane to balance comfort and durability.
Nylon
Nylon is a slightly less commonly used fabric for swimwear, but it is comfortable, smooth, and absorbs very little water, making it an excellent choice for swimming.
The fast-drying nature of nylon also helps swimsuits dry quickly after use.
Suits for lap swimming that primarily use nylon include the TYR Alliance T-Splice Maxfit One Piece, TYReco Solid Diamondfit One Piece, and the Sporti Thin Strap One Piece Swimsuit.
Care and Maintenance of Swimwear
Properly caring and maintaining your swimwear can significantly extend their lifespan and maintain the swimsuit’s performance, helping you to continue kicking butt in the pool.
Here are some essential tips:
Rinse with cold water
After you’ve conquered your swim workout, hit your desired mileage, and burned ALL the calories, give your swimsuit a quick rinse with fresh water. This will remove residue chlorine from the fabric.
Chlorine is a solvent that degrades swimsuit fabrics over time, so keeping your swimsuit relatively chlorine-free after you’ve left the pool will maximize its lifespan.
Avoid soaps and solvents
If washing your swimsuit is absolutely essential, use a gentle soap or detergent appropriate for swimwear.
Regular soaps and detergents are often too strong and harsh for delicate swimwear fabrics, reducing the elasticity and damaging fabrics.
Air dry
When you get home, unfurl your swimsuit and hang dry it. Avoid using extreme heat, like from a dryer, which can warp and damage the fabrics in your swimsuit.
Yes, air drying is slower, but will preserve the fabric composition of your swimsuits, extending the lifespan.
Leave out of the sun
While sunshine is nature’s way of drying swimsuits very quickly, it can also damage your swimsuit.
UV rays break down the bonds in synthetic fabrics, such as those found in swimsuits, like polyester, nylon, and elastane. As a result, the swimsuit loses strength and elasticity.
Conclusion
Choosing the perfect swimsuit for swim training and lap swimming can make or break your swims.
It can be frustrating to strap on an ill-fitting swimsuit that chafes your neck, impedes proper swimming, thins and stretches after a couple of swims, and otherwise doesn’t work as hard as you do in the pool.
By using the expert recommendations above and our buyer’s guide to properly assess the fabrics and designs of respective swim training swimsuits, you can choose with confidence and hit the pool ready to rock and roll.
Happy swimming!
FAQs
How do I choose a swimsuit for lap swimming?
Choosing the right swimsuit for lap swimming requires sizing the swimsuit so that it is snug and form-fitting, choosing a suit that uses durable and hydrodynamic fabrics, and is designed for unimpeded range of motion when swimming.
Look for chlorine-resistant materials like polyester, nylon, and Spandex. One-piece swimsuits provide the most support and coverage. Back designs such as racerback and cross-back evenly distribute tension and promote faster swimming. Thinner straps offer a full range of motion, while thicker shoulder straps provide more support.
These factors ensure comfort and optimal performance for swim training.
Can you swim laps in a two-piece swimsuit?
Yes, there are two-piece swimsuits designed specifically for women who swim laps, such as the TYR DiamondBack One Workout Bikini. These suits are ideal for swim training.
Some two-piece swimsuits also allow women to choose different top and bottom sizes, providing better fit, comfort, and coverage.
However, bikinis and other poolside swimwear are not suitable for lap swimming. They lack support, particularly in the bust, increase drag, and have straps that are prone to shifting or falling off during vigorous arm movements.
How tight should a lap swimsuit be?
A lap swimsuit should be snug but not restrictive. Swimsuits for swim training and racing should strike a balance between a snug, hydrodynamic fit that eliminates water seeping into the swimsuit with coverage and comfort.
Do girls wear bras under swimsuits?
Girls do not wear bras under swimsuits when lap swimming. Training swimsuits are designed to be snug and provide ample support, often with built-in linings.
Wearing a bra under a swimsuit can create extra drag, cause discomfort, and shift around. Proper lap swimming swimsuits are designed to function effectively on their own, making additional undergarments unnecessary.